package com.kfm.springboot.interceptor;

import com.kfm.springboot.util.Contains;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Component
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        if ( request.getSession().getAttribute(Contains.LOGIN_FLAG) != null){
            return true;
        }
        response.sendRedirect(request.getContextPath() + "/login");
        return false;
    }
}
